Physiology Of Muscle Fatigue

Physiology Of Muscle Fatigue

Physiology Of Muscle Fatigue

Muscles are the building blocks for movement in the human body. They come in several different types, each serving a different purpose, and they are structurally complex.

Basic Muscle Structure in Humans

Muscles contain four subunits. To begin with, muscles are composed of many fascicles, which are made up of muscle fibers. Muscle fibers contain myofibrils, which are comprised of the myofilaments actin and myosin. Actin is often referred to as the thin myofilament, whereas myosin is thick.

There is also a ring of collagen around muscles, called the epimysium. Collagen around each fascicle is the perimysium, and around each muscle fiber, it is called endomysium.